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Category: Battery

The TI Design TIDA-00949 demonstrates a 15mmx20mm: 92% efficiency: low electromagnetic interference (EMI) DC/DC module with the TPS54202: replacing Low DropOut Regulator (LDO) in major home appliance applications. The high efficiency eliminates the need of heat sink for smaller and cheaper solution. The higher current capability enables additional feature to be added (WiFi: sensors: etc ). The high efficiency and low current consumption help achieving stringent energy rating.

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This design is a 100kHz FBPS converter working in voltage mode. It supports 400Vdc..750Vdc input voltage range and provides 24V/12A regulated. TI's UCC28950 part enables high efficiency at high input voltage.

System Block Diagrams

The following system block diagrams are available from Texas Instruments:

30A SIMPLE SWITCHER Power Module with 3 to 14.5V Reference Design with PMBus

The reference design PMP9464 utilizes the LMZ31530: a 30A SIMPLE SWITCHER Power Module. The LMZ31530 SIMPLE SWITCHER power module is an easy-to-use integrated power solution that combines a 30-A DC/DC converter with power MOSFETs: a shielded inductor: and passives into a low profile: QFN package.This design has a LM25056 on the front end. The LM25056 combines high performance analog and digital technology with a PMBus compliant SMBus/I2C interface to accurately measure the operating conditions of electrical systems including computing and storage blades connected to a backplane power bus. This allows the user to monitor the real time values of Vin: Iin: Pin and Pout; as well as temperature and peak power. These values are reported via PMBus/SMBus/I2C.PMP9464 also enables the user to margin the output voltage setting: by slewing it up or down. This is done with the LM10011 VID programmable current DAC. The LP2951 supplies a 3.3V rail for the LM3881 power sequencer. The LM3881 sequencer can be used for sequencing other off board power supplies.

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The TIDA-00704 is a compact: universal input: 20-32VDC - 320-W output: AC/DC storage battery bank charger for 8 cell LiFePO4 batteries. The circuit consists of a front end continuous conduction mode (CCM) power factor correction (PFC) circuit: followed by an LLC based second stage. The design uses the UCC29950 combo controller which controls both the PFC stage and LLC stage: to achieve a compact and robust control structure. Synchronous rectification based on UCC24610 and low RDSon FETs from Texas instruments help in achieving higher efficiencies. The board comes with an option of a customizable battery charge profiling: by means of adding a small daughter card based on MSP430 controller.

System Block Diagrams

The TIDA-00709 is a 36-W: dual output: auxiliary power supply with provision to accept both wide ranges of DC as well as AC input. Based on the input: this TI Design can be used as an adapter or auxiliary power supply designed for use in power converters targeted for server: telecom: and industrial system applications. This reference design is a quasi-resonant (QR) flyback converter implemented using the UCC28740 constant voltage-constant current (CV-CC) flyback controller with optocoupled feedback for voltage and primary-side regulation (PSR) for current. For improved efficiency: the TIDA-00709 uses synchronous rectification with sync controller UCC24636 and low RDS(on) MOSFET for main 12- V_ISO/2.75-A output. Hardware is designed and tested to pass conducted emissions: surge and EFT requirements. Additionally: the design has a built-in eFuse for multiple faults isolation for main output rail without effecting any other output.

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TIDA-00940 is a 3-W: non-isolated bias power supply with up to 80% efficiency and excellent EMI performance: designed for motor control and drive subsystems in major appliances to save system costs: and other main benefits here. This reference design provides two non-isolated outputs with buck topology and is implemented using TI’s UCC28881 and TPS5405 controllers providing full protection. The hardware is designed and tested to pass EN-55014 Class B requirements for household appliances.

System Block Diagrams

The following system block diagrams are available from Texas Instruments:

4.5V-60V Input Voltage SEPIC Converter (6.5V@2.5A) Reference Design

This 6.5V @ 2.5A SEPIC converter is designed to operate over a very wide input voltage range. After initial power up at 6V input: the converter can operate down to 4.5V input by implementing a voltage doubler for to provide bias power. It requires minimal component count: a small PCB area and offers very good efficiency.

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PMP9750 is a CLL resonant converter reference design with 400VDC input and 28V/9A ouput. Unlike LLC series resonant converter: CLL resonant converter used in PMP9750 utilizes its output inductor to minimize the size of the resonant tank. With resonant controller UCC25600 and bridge driver UCC27714: PMP9750 is able to achieve 95.7% peak efficiency.

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The TI Design TIDA-00946 demonstrates a 10.5mmx14.5mm: 94% efficiency: low electromagnetic interference (EMI) DC/DC module with the TPS54202: replacing Low DropOut Regulator (LDO) in major home appliance applications. The high efficiency eliminates the need of heat sink for smaller and cheaper solution. The higher current capability enables additional feature to be added (WiFi: sensors: etc ). The high efficiency and low current consumption help achieving stringent energy rating.

System Block Diagrams

The TI Design TIDA-00948 demonstrates a 15mmx20mm: 94% efficiency: low electromagnetic interference (EMI) DC/DC module with the TPS54202: replacing Low DropOut Regulator (LDO) in major home appliance applications. The high efficiency eliminates the need of heat sink for smaller and cheaper solution. The higher current capability enables additional feature to be added (WiFi: sensors: etc ). The high efficiency and low current consumption help achieving stringent energy rating.

System Block Diagrams

The PMP4320A reference design is a single output DC-DC converter with standard half-brick dimensions and full digital control configuration based on the UCD3138. It is capable of delivering 50A output current with an output voltage of 12V. The converter provides high efficiency and good performance with flexible configuration options: which makes it an ideal choice for the bus converter.

System Block Diagrams

The following system block diagrams are available from Texas Instruments:

60W: 24V High Efficiency Industrial Power Supply with Precision Voltage: Current and Power Limit

The TIDA-00702 is a 60-W: industrial AC-DC power supply designed for use in industrial and instrumentation systems such as process controls: factory automation: and machinery control. This reference design is a Quasi-resonant (QR) flyback converter implemented using the UCC28740 CC-CV flyback controller with optocoupled feedback for voltage and primary-side regulation (PSR) for constant current regulation: with all the necessary protections built-in. Hardware is designed and tested to pass conducted emissions: surge: and EFT requirements.The key highlights of reference design:Reduced component count design to achieve NEC Class-2 and Limited Power Source (LPS) normsMeets Energy Star Rating and 2013 EU eco-design directive Energy-related Products (ErP) Lot 6Robust output supply protected for output over-current: output short circuit: output over-voltage: and over temperature conditions

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Today's automotive power consumtion is 3KW: which will increase to 10KW in next 5 years and 12V batttary is unable to provide that much power. 48-12V bi-directional convertor provides high power requirement solution with two phases each capable of running 28A. This solution allows bidirectional current control of both phases using a C2000 control stick and firmware OCP & OVP. The 48-12V bi-directional converter removes the voltage conditioner need and distributes loads more evenly. The 48V battary is used to power high torque motors and other high power components such as A/C compressors and EPS: while no change to 12V battery loads.

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This reference design provides an isolated 5V/1.5A output from a universal 85-265VAC input with an efficiency greater than 78%. Employing the UCC28722 Primary Side Regulation (PSR) Flyback controller which helps to eliminate the opto-coupler and secondary side regulation components: this design delivers additional cost savings by employing a bipolar power switch. Additionally: the design features the TPS2511 USB Dedicated Charging Port Controller and Current Limiting Power Switch to safely charge most smart phones and tablets. The energy saving features of the UCC28722 allow this design to consume less than 50mW when plugged into the wall with no device attached to the USB port.

System Block Diagrams

The following system block diagrams are available from Texas Instruments:

85-265Vin: 5Vout: 1Aout: AC-DC Fly-Buck Converter Reference Design

The PMP10834RevA reference design is a compact and thermally efficient design intended to step down a wide range of AC inputs (85VAC to 265VAC). This non-isolated Flybuck design incorporates the UCC28C42 PWM with an optocoupler feedback to provide 1% output voltage regulation. All the circuit components (including magnetics) are standard parts.

System Block Diagrams

The following system block diagrams are available from Texas Instruments:

85VAC to 264VAC Input: 12V/500mA Output Bias supply Reference Design

The PMP20122 is a compact and thermally efficient design intended to step down a wide range of AC inputs (85VAC to 264VAC). This non-isolated buck design incorporates the UCC28710 PSR controller to provide a well regulated a 12V/500mA output. The PMP20122 board is designed with complete standard components (including magnetics).

System Block Diagrams

The PMP11225 reference design implements two small-footprint integrated FET synchronous buck converters. Optimized for small size: each converter operates at 1.3MHz and occupies an area of only 7mm x 10mm.

System Block Diagrams

The following system block diagrams are available from Texas Instruments:

AC Input: Dual Output Power Supply Reference Design

The PMP4405 reference design uses the UCC28740 Flyback controller with valley-switching controller to generate dual DC output 5V/2A and 26V/0.3A from a universal AC input. The design is suited for auxiliary power for industrial applications and appliances. The design is fully tested and compliant with EMI regulations

System Block Diagrams

The following system block diagrams are available from Texas Instruments:

AC-Coupled RS-485 Reference Design

The TIDA-01171 reference design allows for RS-485 communication over an AC-coupled link: even at very low data rates. This allows for nodes to communicate even when large ground potential differences exist between nodes. Using AC coupling also helps to protect transceivers from bus faults that can result in direct shorts to high-voltage power supplies.

System Block Diagrams

The TIDA-01052 reference design aims to highlight system performance increases seen using a negative voltage rail on the analog front end driver amplifiers rather than ground. This concept is relative to all analog front ends: however this design is aimed specifically at automatic test equipment.